Monte Sierpe is made up of around 5,200 shallow pits, measuring 1 to 2 m (3 to 6.5 ft) wide and 0.5 to 1 m (1.5 to 3 ft) deep, arranged into neat blocks along a narrow ridge. Each pit is roughly the size of a small storage cavity, and while the band appears continuous when sighted from a distance, closer inspection reveals that it is broken into sections, separated by gaps that allow foot traffic across the mountain. What's more, rows of holes consistently repeat the same pattern, sometimes alternating between specific numbers. Some sections contain long stretches of identical rows, while others show repeating alternations. The structure, the team argues, resembles khipus – except on at a large scale, and built into earth and stone.
Before we tested the 2nd gen Bose QuietComfort headphones, the 1st gen headphones were the most comfortable headphones we've tested. You can wear them for a full workday without any ear fatigue. In addition to the comfort of the headphones, the star of the show is its audio quality with rich, clear sound. For audiophiles, the 1st gen QC Ultras have spatial audio for an immersive sound experience.
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